The main difference with cost is we have moved away from open source software. You can still 'edit' the code, but the core software requires a one off payment plus yearly subscription fees (forums, gallery, chat, etc). There was a big hit in purchasing all of the apps (but next year only a maintenance fee is required which is much better). I know people were probably content with the old site and didn't really "ask" for this new site so it's wrong for me to expect people to subscribe. I can only hope members enjoy the overall experience enough to consider it worth subscribing to and I have made the fee as low as possible.
There were two main reasons for moving to paid software:
1. More functionality
2. Ease of administration (which was becoming an increasing burden on me -but with the new software a weight has been lifted).
Thanks again, Sean